synoptic: 30 data points in equal steps of sine latitude from +14.5/15 to -14.5/15 CT1931:360 176.437 104.606 35.868 -38.366 -82.991 -60.535 -6.347 16.369 31.232 34.085 35.172 28.352 17.684 16.111 23.688 35.305 45.327 95.074 56.619 -189.242 -421.501 -453.858 -308.054 -113.208 -45.380 -4.607 13.653 -19.516 -64.002 -101.814 CT1931:355 189.763 114.599 39.317 -41.758 -87.420 -56.381 15.190 45.289 48.761 42.628 41.414 29.914 14.079 10.409 -10.142 -17.283 45.765 186.795 195.065 -91.850 -560.081 -623.107 -364.663 -178.531 -128.783 -40.463 9.123 -19.070 -73.446 -119.106 CT1931:350 193.396 130.260 57.690 -51.016 -122.078 -104.627 -41.356 -16.962 -8.059 19.768 31.418 5.354 -1.465 1.598 -11.703 -2.005 71.244 229.413 284.379 259.987 212.624 134.024 -96.405 -264.076 -239.565 -81.131 -22.169 -54.937 -91.754 -115.261 CT1931:345 157.365 80.690 5.927 -68.288 -112.769 -108.478 -77.216 -62.263 -85.900 -143.545 -149.114 -68.478 -4.340 3.293 -19.227 -10.226 76.930 253.406 353.890 507.636 669.142 587.883 181.233 -112.738 -143.508 -74.731 -36.214 -44.696 -71.296 -103.807 CT1931:340 144.621 67.112 0.049 -62.331 -100.657 -100.747 -84.990 -72.104 -62.570 -40.844 -31.573 -27.475 -11.235 -11.569 -37.966 -37.496 42.870 205.983 305.764 423.239 493.257 436.937 226.712 25.376 -19.957 0.180 -18.683 -59.362 -104.871 -145.897 CT1931:335 183.804 123.508 62.305 -20.864 -73.891 -60.290 -6.877 30.946 56.772 90.669 94.046 55.890 25.351 4.829 -33.943 -37.228 3.009 60.131 106.722 272.855 507.237 517.084 367.390 253.241 183.652 96.277 25.907 -78.514 -195.316 -252.768 CT1931:330 175.831 119.371 54.373 -22.846 -66.983 -42.672 20.333 74.479 146.784 228.693 227.251 133.924 24.883 -13.654 -17.059 -14.069 -6.529 0.487 35.680 114.579 214.694 238.119 227.428 179.614 137.000 70.479 1.757 -51.880 -99.476 -140.838 CT1931:325 182.086 152.574 107.058 17.392 -33.675 -15.079 22.782 74.350 201.187 394.243 408.613 230.265 31.877 -24.797 -13.689 -6.360 -10.282 -25.178 -13.351 27.884 81.177 112.816 166.808 199.297 158.783 52.773 -13.967 -35.687 -53.887 -79.960 CT1931:320 157.219 109.614 59.907 4.252 -13.047 40.026 130.557 193.475 331.014 500.912 489.991 276.308 43.228 -25.721 -17.755 -16.749 -17.131 -17.432 -8.173 0.319 16.040 41.060 99.580 147.853 120.795 42.611 -16.375 -45.701 -66.459 -90.242 CT1931:315 123.120 85.170 60.000 18.618 18.987 149.594 349.116 329.832 434.403 525.162 474.753 268.214 31.190 -36.496 -25.668 -11.498 -9.268 -6.915 -4.256 -10.251 -19.938 -8.735 30.019 62.743 49.157 4.969 -28.162 -54.699 -78.524 -99.544 CT1931:310 83.601 64.659 47.530 20.534 40.833 210.629 499.810 442.238 450.581 502.425 480.262 197.791 -97.404 -145.999 -72.451 -26.549 -10.564 25.819 45.351 26.806 1.832 -3.612 -13.558 -24.753 -24.725 2.945 4.201 -37.825 -86.378 -117.016 CT1931:305 60.790 69.810 81.829 64.681 82.935 243.366 513.610 437.994 224.894 -128.667 -242.665 -188.992 -143.379 -126.269 -63.821 -16.085 -1.088 1.357 -1.564 6.070 18.762 14.855 -17.962 -43.638 -48.366 -44.808 -45.611 -60.434 -81.351 -107.408 CT1931:300 16.107 14.487 20.952 32.087 67.600 194.628 379.225 293.267 -93.760 -625.781 -739.195 -439.177 -106.502 -27.672 -4.925 26.512 37.825 33.862 30.086 4.879 -24.372 -30.409 -21.071 -16.967 -21.460 -26.820 -37.031 -57.699 -80.446 -105.861 CT1931:295 -20.033 -34.266 -20.527 8.712 37.672 69.857 117.767 52.912 -217.209 -546.372 -588.256 -344.172 -70.571 9.047 6.661 10.550 30.096 48.542 44.517 1.063 -51.481 -54.186 -9.347 24.841 21.275 1.917 -16.070 -45.629 -80.135 -111.354 CT1931:290 -41.071 -16.074 17.519 68.312 99.419 46.379 -64.323 -166.888 -309.053 -447.542 -438.749 -250.250 -57.666 15.735 27.843 42.807 53.046 67.231 63.519 0.515 -77.644 -79.227 6.760 73.433 60.849 12.156 -26.425 -71.715 -111.974 -137.483 CT1931:285 -61.540 -25.575 5.187 57.420 81.039 -37.335 -231.732 -349.794 -312.720 -240.097 -193.485 -89.834 4.556 42.398 28.615 24.938 37.834 57.479 55.383 15.264 -44.300 -44.708 14.696 49.983 41.863 10.332 -18.425 -57.526 -93.409 -116.673 CT1931:280 -57.191 -18.094 16.461 34.528 23.149 -75.365 -245.547 -296.743 -223.975 -92.731 -29.711 26.163 63.798 73.250 38.007 27.178 31.109 37.041 37.291 40.475 54.034 60.316 67.350 69.275 55.177 33.926 11.919 -13.692 -41.494 -74.371 CT1931:275 -119.369 -94.002 -72.251 -48.473 -34.573 -122.429 -245.857 -266.648 -155.168 -18.169 33.863 49.088 48.990 49.366 36.152 33.724 32.096 28.290 30.294 36.423 38.176 39.799 44.276 42.994 37.360 32.131 21.303 14.335 -0.223 -32.686 CT1931:270 -127.004 -81.662 -42.408 -16.353 -17.239 -70.309 -136.015 -221.547 -144.450 -24.683 19.526 19.864 15.133 19.086 17.950 21.203 24.023 23.323 27.874 49.179 66.781 65.925 58.374 52.320 41.739 18.118 3.328 -5.139 -12.535 -24.280 CT1931:265 XXX XXX XXX XXX XXX XXX XXX -146.299 -94.554 -14.289 9.981 -8.713 -19.882 -6.293 34.421 56.305 48.654 27.181 26.824 57.059 90.548 87.472 54.846 34.383 21.050 0.468 -24.491 -71.664 -94.561 -96.895 CT1931:260 XXX XXX XXX XXX XXX XXX XXX -42.062 -33.572 -44.690 -38.266 -23.858 -10.199 6.808 42.058 59.873 54.195 35.629 32.937 50.727 66.037 52.924 -12.448 -44.000 -5.899 81.990 67.083 -7.985 -78.605 -116.510 CT1931:255 XXX XXX XXX XXX XXX XXX XXX 184.125 131.936 9.552 -5.966 25.704 49.606 56.698 56.860 54.859 55.305 55.855 55.956 54.200 51.402 54.674 52.278 45.158 52.527 79.166 68.087 26.714 -36.562 -118.303 CT1931:250 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX CT1931:245 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX CT1931:240 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX CT1931:235 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX CT1931:230 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX CT1931:225 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX CT1931:220 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX CT1931:215 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX CT1931:210 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX CT1931:205 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX CT1931:200 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX CT1931:195 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX CT1931:190 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX CT1931:185 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX CT1931:180 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX CT1931:175 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX CT1931:170 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX CT1931:165 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX CT1931:160 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX CT1931:155 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX CT1931:150 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX CT1931:145 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX CT1931:140 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX CT1931:135 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX CT1931:130 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX CT1931:125 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX CT1931:120 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX CT1931:115 100.658 16.404 19.823 41.924 56.566 62.423 87.234 108.622 100.719 75.211 62.381 22.440 -15.264 -30.262 -32.779 -24.245 -5.349 35.589 75.601 197.882 411.964 461.373 278.851 50.660 8.424 34.942 34.528 13.152 -18.408 -54.725 CT1931:110 64.398 13.650 -11.654 -1.849 23.891 18.926 -12.498 -21.109 -9.815 1.541 3.585 4.401 5.707 -8.380 -18.054 -15.971 0.543 23.050 51.710 186.123 453.215 496.918 255.880 12.771 -20.520 14.281 16.812 -20.291 -55.959 -81.882 CT1931:105 -2.616 4.166 0.009 4.242 16.648 4.885 -58.507 -86.123 -7.957 198.486 295.966 229.204 79.840 17.005 1.790 -0.428 2.438 18.103 31.381 53.361 58.482 49.371 41.022 24.739 4.100 11.681 11.205 -20.878 -60.754 -93.592 CT1931:100 46.179 70.483 79.731 66.813 42.769 16.835 -48.133 -77.979 13.163 275.882 386.045 304.703 92.679 19.949 11.602 6.311 -0.462 7.071 17.184 -2.903 -52.577 -68.856 -61.557 -28.924 -10.939 6.745 17.706 -13.297 -57.818 -95.105 CT1931:095 91.267 98.200 92.487 70.115 42.206 16.647 -23.727 -50.701 -19.187 79.125 129.093 127.215 97.402 80.903 35.813 -20.627 -39.592 -50.110 -65.627 -83.488 -120.761 -133.167 -109.627 -59.018 -35.283 8.962 37.670 3.584 -50.902 -91.132 CT1931:090 86.223 78.040 62.006 34.548 4.079 -18.151 -18.769 -28.027 -87.718 -251.062 -342.191 -264.606 -61.453 17.342 15.121 -2.030 -10.511 -27.431 -39.414 -63.995 -121.519 -145.363 -118.076 -55.617 -24.237 -2.000 15.184 3.060 -30.440 -68.439 CT1931:085 45.592 41.011 41.021 44.741 45.522 24.208 -24.063 -71.612 -137.464 -295.212 -363.726 -308.275 -132.894 -36.138 -7.209 10.940 15.469 -1.396 -18.299 -31.070 -50.529 -58.524 -53.296 -34.986 -26.694 -19.522 -12.799 -25.193 -46.986 -68.810 CT1931:080 14.915 4.198 3.593 30.409 66.095 56.899 8.554 -37.858 -93.127 -191.072 -246.248 -210.181 -99.196 -37.758 -21.773 -11.968 -6.026 -11.127 -14.304 -12.119 -1.481 3.610 -10.976 -40.866 -46.965 -29.705 -6.750 -14.560 -43.164 -76.822 CT1931:075 7.740 13.196 20.471 31.833 38.497 30.247 19.366 0.888 -26.047 -60.308 -87.421 -81.622 -59.513 -47.128 -37.903 -37.280 -34.732 -34.748 -31.807 -21.154 11.934 30.373 3.680 -57.990 -76.756 -44.986 -12.136 -29.152 -66.694 -98.401 CT1931:070 4.745 29.701 46.034 55.585 63.877 58.961 44.004 26.679 12.035 4.273 -8.442 -15.069 -26.692 -29.038 -33.796 -44.986 -45.623 -47.285 -42.848 -29.896 10.589 34.564 7.100 -63.402 -93.260 -76.675 -51.782 -62.014 -87.314 -108.399 CT1931:065 2.622 21.292 42.011 66.486 83.078 78.176 51.474 24.958 8.097 3.376 5.285 -8.634 -36.844 -46.656 -39.909 -28.782 -22.745 -35.035 -64.530 -49.911 27.772 67.305 31.243 -57.485 -91.781 -82.284 -64.466 -73.679 -94.015 -113.258 CT1931:060 12.095 16.494 28.079 61.815 97.309 94.452 49.409 3.279 -18.410 -49.402 -82.485 -77.872 -47.912 -33.776 -25.388 -15.357 -11.269 17.147 59.324 65.200 46.495 36.992 24.757 -4.101 -24.724 -52.733 -73.336 -90.317 -108.765 -119.924 CT1931:055 38.597 45.451 54.778 65.096 69.808 62.023 44.608 28.482 6.877 -32.971 -52.240 -50.879 -31.089 -18.148 -0.649 31.214 38.303 21.788 11.653 17.093 33.998 47.144 38.459 8.053 -13.287 -28.104 -43.252 -62.252 -85.048 -106.740 CT1931:050 60.315 69.425 67.397 56.548 48.614 35.837 16.751 -1.185 -13.604 -22.321 -27.080 -17.406 14.676 31.615 32.256 34.901 27.647 -47.207 -144.588 -127.185 -5.291 66.653 67.977 51.092 35.520 14.332 -9.098 -32.286 -54.869 -79.774 CT1931:045 67.141 72.730 68.846 54.127 36.502 20.176 2.823 -13.015 -17.504 -4.333 7.557 18.306 43.922 53.797 32.794 -17.123 -41.656 -62.484 -81.579 -66.965 1.624 54.127 69.773 77.716 70.529 27.095 -18.397 -38.149 -51.975 -70.765 CT1931:040 62.166 69.333 78.265 93.776 108.124 97.037 44.190 8.699 2.497 14.492 24.786 31.982 44.025 43.619 26.152 -2.629 -14.698 -0.807 30.607 35.625 26.625 31.163 45.979 66.775 63.295 29.366 -11.394 -36.636 -55.405 -72.091 CT1931:035 58.859 64.872 71.826 83.183 92.851 89.902 64.516 38.599 37.152 49.048 47.247 44.494 48.459 43.635 18.494 -19.280 -28.093 7.831 41.909 42.878 7.509 -9.068 21.564 81.500 89.495 47.339 5.083 -20.439 -44.656 -70.844 CT1931:030 66.080 72.130 77.686 80.863 81.428 93.834 143.807 180.768 174.188 125.708 87.390 78.289 64.395 43.197 19.194 -6.790 -14.564 -2.025 13.434 14.095 -1.836 -5.324 19.463 70.809 81.244 49.742 6.860 -24.478 -51.779 -79.442 CT1931:025 67.849 85.908 88.635 86.398 84.570 91.640 128.576 155.130 158.112 160.939 161.599 143.113 88.086 52.986 26.990 -15.043 -37.304 -26.796 -12.347 -13.731 -28.476 -30.164 -1.403 50.621 65.314 37.538 -0.396 -33.852 -72.782 -104.050 CT1931:020 87.131 95.085 95.805 85.164 71.930 61.308 45.885 37.178 28.817 25.312 40.347 43.025 49.270 53.268 33.518 7.310 -7.454 -33.783 -62.808 -69.396 -58.971 -45.963 -9.432 54.368 81.165 63.420 34.435 -13.008 -77.457 -133.421 CT1931:015 82.788 87.619 87.972 81.951 69.971 44.402 -26.188 -94.911 -116.942 -132.203 -160.407 -131.718 -29.605 13.449 14.101 5.596 -13.402 -51.002 -93.450 -107.033 -93.547 -60.843 -22.913 54.578 92.910 85.612 59.473 12.144 -64.646 -147.684 CT1931:010 60.922 56.864 56.256 69.233 88.124 76.514 10.527 -43.631 -58.762 -54.468 -27.484 -21.908 -5.072 12.763 15.606 21.682 13.080 -51.843 -148.370 -176.218 -169.086 -151.756 -106.272 7.609 60.049 65.281 56.022 -4.410 -110.788 -191.347 CT1931:005 76.617 54.747 42.523 39.726 37.381 26.901 20.507 18.167 12.408 9.643 10.087 12.286 18.593 22.327 15.182 3.887 0.471 -18.331 -43.744 -72.360 -156.351 -232.016 -181.226 -29.550 43.087 62.198 63.861 24.798 -49.989 -111.961 CT1932:360 105.262 75.409 53.610 40.060 30.265 26.582 26.263 19.187 18.476 35.073 45.485 38.561 20.775 11.182 3.560 -24.424 -27.565 36.106 124.094 105.320 -22.437 -127.076 -121.846 -30.272 17.991 39.803 50.903 37.026 -6.601 -61.126